What Is a Filament Made of?

Answer

The bulb filament is made of tungsten thin metal this because tungsten has a low evaporation rate and a high melting point. In the early 1820 the filaments where made of platinum which worked effectively but too expensive to commercially produce.
2 Additional Answers
A filament is made up of tungsten. Tungsten has a very high melting point so it is able to get hot, but not melt. The Tungsten heats up and flow red hot which produces a white glow, which produces the light.
Currently, the filament of a light bulb is made from Tungsten. Did you know that the first filaments were made from platinum in 1820 and deemed too expensive to keep producing?
Q&A Related to "What Is a Filament Made of"
Light bulb filaments are made from tungsten. The first light bulb was made by Warren De la Rue in 1820. The filament was made of platinum, which worked very well but was too expensive
http://www.ehow.com/facts_5554112_filament-light-b...
A filament is just a thin wire, so it can be a variety of different materials.
http://wiki.answers.com/Q/What+is+the+thin+filamen...
The thick filaments are made of the protein myosin, and the thin ones are made of
http://www.chacha.com/question/what-are-muscle-fil...
What kind of filament? Source(s): http://www.m-w.com/cgi-bin/dictionary?&v…
http://answers.yahoo.com/question/index?qid=200706...
Explore this Topic
Filaments for incandescent light bulbs are made of tungsten. Tungsten filaments were introduced in 1906. The typical 60 watt light bulb uses 22.8 inches of coiled ...
Assuming that you're talking about the thin filament of a muscle fiber then its made of actin, troponin, tropomyosin, and a binding site for a calcium ion. ...
Light bulb filaments are made from tungsten. The first light bulb was made by Warren De la Rue in 1820. The filament was made of platinum, which worked very well ...
About -  Privacy -  AskEraser  -  Careers -  Ask Blog -  Mobile -  Help -  Feedback © 2014 Ask.com